From 590172e546b3ce9da482efd25e8e0a260eb7833a Mon Sep 17 00:00:00 2001
From: WormHeamer
Date: Thu, 1 Jan 2026 19:29:22 -0500
Subject: add a trailing underscore to dynarr capacity, to help prevent errors

---
 dynarr.h | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/dynarr.h b/dynarr.h
index 8be23f5..b4fb2ec 100644
--- a/dynarr.h
+++ b/dynarr.h
@@ -7,12 +7,7 @@
 
 #include "wrmr.h"
 
-typedef struct {
-	u32 n, c;
-	void *v;
-} DynArrHdr;
-
-#define DYNARR(T) struct { u32 n, c; T *v; }
+#define DYNARR(T) struct { u32 n, c_; T *v; }
 
 #define DA_INIT_CAP 32
 #define DA_ELEM(da, n) ((n) * sizeof(*(da)->v))
@@ -20,8 +15,8 @@ typedef struct {
 /* malloc */
 
 #define DA_FIT(da, n) do {\
-	(da)->c = stdc_bit_ceil(n);\
-	(da)->v = realloc((da)->v, DA_ELEM(da, (da)->c));\
+	(da)->c_ = stdc_bit_ceil(n);\
+	(da)->v = realloc((da)->v, DA_ELEM(da, (da)->c_));\
 	if (!(da)->v) FAIL_WITH_MSG("failed to realloc dynamic array");\
 } while(0)
 #define DA_GROW(da, n_) DA_FIT(da, (da)->n + (n_))
@@ -39,9 +34,9 @@ typedef struct {
 
 #define DA_AFIT(da, a, n) do {\
 	u32 da_fit_c = stdc_bit_ceil(n);\
-	(da)->v = arena_realloc(a, (da)->v, DA_ELEM(da, (da)->c),\
+	(da)->v = arena_realloc(a, (da)->v, DA_ELEM(da, (da)->c_),\
 	    DA_ELEM(da, da_fit_c), _Alignof(TYPEOF(*(da)->v)));\
-	(da)->c = da_fit_c;\
+	(da)->c_ = da_fit_c;\
 } while(0)
 #define DA_AGROW(da, a, n_) DA_AFIT(da, a, (da)->n + (n_))
 #define DA_APUSH(da, a, ...) do {\
-- 
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